No air yet, I have only had the time to pull a corner out to look at it so far. From what I saw the stitching looked good and it had great seam sealing. I was surprised at how thin and light the material looked. I have my doubts about the strength and longevity of it but everyone says it works well. If I really pull on the tie out it wont rip, right?
I was surprised at the material since I have a few yards of stuff that looks exactly like it from Wal-Mart. The only difference is that it doesn't seem to have the Silicone backing. So far it has made great stuff bags and snake skins.